Ovsynch Plus CIDR Protocol for Timed Embryo Transfer in Suckled Postpartum Japanese Black Beef Cows
نویسندگان
چکیده
منابع مشابه
Ovsynch plus CIDR protocol for timed embryo transfer in suckled postpartum Japanese Black beef cows.
We compared synchronization and pregnancy rates, and the increase in blood progesterone concentrations during luteal development, between (1) Ovsynch plus an intravaginal controlled internal drug release (CIDR) device protocol followed by timed embryo transfer (timed ET), and (2) a conventional estrus synchronization method using PGF(2 alpha) and ET in suckled postpartum Japanese Black beef cow...
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The objective of this study was to compare the effects of three different estrus synchronization protocols on the pregnancy rates of lactating dairy cows. Group 1 (Ovsynch protocol; n= ) animals received 20 μg GnRH on day 0, 500 μg PGF2α on day 7 and 20 μg GnRH on day 9; Group 2 (Heatsynch protocol; n= ) received 20 μg GnRH on day 0, 500 μg PGF2α on day 7 and an injection of 1 ml estradiol cypi...
متن کاملComparison of plasma concentrations of estradiol-17β and progesterone, and conception in dairy cows with cystic ovarian diseases between Ovsynch and Ovsynch plus CIDR timed AI protocols.
The objectives of this study were 1) to determine the effects of adding a CIDR to the Ovsynch protocol on plasma concentrations of estradiol-17β and progesterone and conception in dairy cows with cystic ovarian diseases and 2) to examine associations among the estradiol-17β and progesterone concentrations and conception. Cows were diagnosed as having cystic ovarian diseases if they were found t...
متن کاملEffect of suckling on the reproductive performance and metabolic status of obese Japanese black cattle during the early postpartum period.
The aim of our study was to investigate the effects of suckling on reproductive performance and metabolic status of obese (mean body condition score of more than 4.0 on a scale of 1-5) maternal Japanese Black cows during early postpartum period. We used 7 postpartum Japanese Black cattle. Four cows were suckled ad libitum (suckled) until completion of their first artificial insemination (AI), w...
متن کاملComparison of a Select Synch/CIDR + Timed Artificial Insemination vs a Modified Co-Synch/CIDR Estrous Synchronization Protocol in Suckled Bos Indicus Х Bos Taurus Cows
Suckled Bos indicus Bos taurus cows were used to compare a Select Synch/CIDR + timed artificial insemination (AI) protocol (SSC) vs a modified Co-Synch/CIDR protocol (COS). Five groups of suckled Bos indicus Bos taurus cows were evaluated (n=659). Cows received GnRH and a CIDR on d 0. On d 7, SSC cows had their CIDR removed and received prostaglandin F2α (PGF2α), whereas COS cows had their ...
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ژورنال
عنوان ژورنال: Journal of Reproduction and Development
سال: 2007
ISSN: 0916-8818,1348-4400
DOI: 10.1262/jrd.18097